Question

explain open,closed and short circuit

Answer 1

a) Open circuit means the wires are cut off so there will be no current flow, but there is voltage.
b) Closed circuit means the wires are connected so there will be flow of current, but there is no voltage
c) Short circuit also refers closed circuit.

Answer 2

A discontinuous circuit through which no current can flow is called open circuit.

An electric circuit through which current can flow in an uninterrupted path is called closed circuit.

An electrical circuit in a device of lower resistance than that of a normal circuit, especially one resulting from the unintended contact of components and consequent accidental diversion of the current is called short circuit.